Title:
DEVICE FOR ADJUSTING DRILLING DEPTH OF DRILL
Document Type and Number:
WIPO Patent Application WO/2018/088576
Kind Code:
A1
Abstract:
When an operator holds a handle (153) of a rotary shaft (151) and turns the rotary shaft (151), a rotary adjusting screw (150) rotates, and at this time, since the threads (152) of the rotary adjusting screw (150) engages with the threads (123) of a rotating body (120), the rotating body (120) rotates along with the same. Then, according to the rotational direction of the rotating body (120), slide keys (170) slide along the slide grooves (112) and are pushed out to the outside or pushed inwards of the slide groove (112). Since the slide grooves (112) are formed at the tapered parts (111a), the slide keys are pushed outwards slantly in the clamping direction of a drill bit (10) when the slide keys (170) are pushed out to the outside of the slide groove (112). Therefore, according to the present invention, a device (100) for adjusting a drilling depth of a drill is clamped and fixed at a desired position of the drill bit (10) by the slide keys (170), wherein the drilling depth is determined according to the fixing of the device at a certain position of the drill bit (10).
Inventors:
HONG SOO HWAN (KR)
HONG JAE CHOL (KR)
HONG JAE CHOL (KR)
Application Number:
PCT/KR2016/012774
Publication Date:
May 17, 2018
Filing Date:
November 08, 2016
Export Citation:
Assignee:
HONG SOO HWAN (KR)
International Classes:
B23B49/00
Foreign References:
| KR20160002084A | 2016-01-07 | |||
| US5716057A | 1998-02-10 | |||
| JP2007268655A | 2007-10-18 | |||
| JP2005169591A | 2005-06-30 | |||
| JPH07276120A | 1995-10-24 |
Attorney, Agent or Firm:
PARK, Ji Ho (KR)
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